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freebsd/lib/libc/sys/modnext.2
2000-11-22 16:02:00 +00:00

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.\" Copyright (c) 1999 Chris Costello
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.Dd September 28, 2000
.Dt MODNEXT 2
.Os FreeBSD
.Sh NAME
.Nm modnext
.Nd return the modid of the next kernel module
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.Fd #include <sys/param.h>
.Fd #include <sys/module.h>
.Ft int
.Fn modnext "int modid"
.Ft int
.Fn modfnext "int modid"
.Sh DESCRIPTION
The function
.Fn modnext
returns the modid of the next kernel module (that is, the one after
.Va modid )
or 0 if
.Va modid
is the last module in the list.
.Pp
If the
.Va modid
value is 0, then
.Fn modnext
will return the modid of the first module.
.Fn modfnext
must always be given a valid modid.
.Sh RETURN VALUES
.Fn modnext
returns the modid of the next module (see DESCRIPTION) or 0. If an error
occurs,
.Va errno
is set to indicate the error.
.Sh ERRORS
The only error set by
.Fn modnext
is
.Er ENOENT ,
which is set when
.Va modid
refers to a kernel module that does not exist (isn't loaded).
.Sh SEE ALSO
.Xr kldfind 2 ,
.Xr kldfirstmod 2 ,
.Xr kldload 2 ,
.Xr kldstat 2 ,
.Xr kldunload 2 ,
.Xr modfind 2 ,
.Xr modstat 2 ,
.Xr kld 4
.Sh HISTORY
The
.Nm kld
interface first appeared in
.Fx 3.0 .